On the habits and nature of association of the copepod Pseudomyicola spinosus with the rock oyster Crassostrea glomerata in New Zealand

Dinamani, P.; Gordon, Dominique

doi:10.1016/0022-2011(74)90138-4

Cited by 17 publications

(9 citation statements)

References 2 publications

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“…These copepod crustaceans could be immersed in connective tissue infiltrated by hemocytes or in the intestinal lumen, stomach lumen, and diverticula in the digestive gland. Copepods like Pseudomyicola spinosus have also been observed in the Sydney rock oyster Saccostrea glomerata (Dinamani and Gordon 1974).…”

Section: Discussionmentioning

confidence: 98%

Parasites of the Pleasure Oyster Crassostrea corteziensis Cultured in Nayarit, Mexico

2010

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The pleasure oyster Crassostrea corteziensis is collected and cultured in Nayarit on the Pacific coast of Mexico, and the improvement and promotion of its culture are seen as a possible source for the economic development of coastal populations. However, information about the parasite fauna of the pleasure oyster is almost completely lacking. A histopathological survey carried out in two estuaries, Boca del Camichín and Pozo Chino, revealed the presence of hypertrophied gametes, rickettsiales-like prokaryotes (RLPs), the protozoan Perkinsus marinus, a protozoan Nematopsis sp., Ancistrocoma-like ciliates (ALCs), Sphenophrya-like ciliates, a turbellarian Urastoma sp., and encysted crustaceans. In general, prevalence and intensity of parasites were similar in both localities except that ALCs and encysted crustaceans were more prevalent in Pozo Chino than in Boca del Camichín. Perkinsus marinus and RLPs seem to represent a more significant risk for the health of pleasure oysters than do the other parasites, and surveillance and control of these parasites are needed for the development of pleasure oyster culture.

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Section: Discussionmentioning

confidence: 98%

Parasites of the Pleasure Oyster Crassostrea corteziensis Cultured in Nayarit, Mexico

2010

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“…Adult copepods at high infestation rates have also been observed in the oyster Saccrostrea glomerata from New Zealand (DINAMANI and GORDON, 1974); in the clams Anadara obesa from Panama (HUMES, 1984) and Austroventus stutchburyi from New Zealand (LEUNG and POULIN, 2007); in the mussels Mytilus galloprovincialis from Mexico (CÁCERES-MARTÍNEZ et al, 1996;OLIVAS-VALDEZ and CÁCERES-MARTÍNEZ, 2002) and Mytilus californianus (CÁCERES-MARTÍNEZ et al, 1996); and in the scallop Argopecten ventricosus from Mexico (CÁCERES-MARTÍNEZ et al, 2005). In Brazil, SABRY et al (2011) observed a copepod possibly belonging to the Pseudomyicola genus in the stomach of cultured Crassostrea rhizophorae oysters.…”

Section: Discussionmentioning

confidence: 91%

Registro de Pseudomyicola spinosus em cultivos de Perna perna do Sul do Brasil

Carneiro-Schaefer¹,

Sühnel²,

Melo³

et al. 2017

Bol. Inst. Pesca

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The copepoda Pseudomyicola spinosus was identified infecting culture Perna perna mussels from Palhoça, Florianópolis, Governador Celso Ramos and Penha, municipalities of Santa Catarina state, Brazil. Adult stage of the parasite was observed in the mantle cavity, with higher prevalence and infestation rate in mussels from Florianópolis (3.33 and 1.08%, respectively). Nauplius phases of the copepod were observed in the digestive gland, gonad and gill of mussels, with highest prevalence in mussels from Penha (17.78%) and highest infestation rate from Palhoça (1.19). The analysis showed that the highest prevalence of the adult phases of the copepods occurred in the autumn (2.22%) while nauplius phases were prevalent in summer (16.67%). Even in situations of higher prevalence and infestation, no histopathological evidence of damage to host was found.Key words: copepod; mussel; mussel culture; pathology.. REGISTRO DE Pseudomyicola spinosus EM CULTIVOS DE Perna perna DO SUL DO BRASIL RESUMOO copépode Pseudomyicola spinosus foi identificado infectando cultivos de mexilhões Perna perna nos municípios catarinenses de Palhoça, Florianópolis, Governador Celso Ramos e Penha, Brasil. O estágio adulto do parasita foi observado na cavidade do manto em maior prevalência e taxa de infestação nos mexilhões de Florianópolis (3,33 e 1,08%, respectivamente). A fase naupliar deste copépode foi observada na glândula digestiva, gônada e brânquia dos mexilhões, em maior prevalência nos mexilhões da Penha (17,78%) e maior taxa de infestação nos mexilhões da Palhoça (1,19). A análise mostrou que a maior prevalência das fases adultas dos copépode ocorreu no outono (2,22%), enquanto as fases naupliares foram prevalentes no verão (16,67%). Mesmo em situações de maior prevalência e taxa de infestação, não foram registrados danos histopatológicos ao hospedeiro.

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“…P. spinosus also invades the gut and is thus probably dependent in some way on the oyster (Dinamani & Gordon 1974). The occurrence of the turbellarian adapted to live on the surface of gills of the oyster may be regarded as a facultative association.…”

Section: Discussionmentioning

confidence: 99%

Potential disease-causing organisms associated with mantle cavity of Pacific oyster Crassostrea gigas in northern New Zealand

Dinamani¹

1986

Dis. Aquat. Org.

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Bimonthly samples of oysters Crassostrea gigas examined from June 1979 to June 1981, as part of a disease monitoring survey, showed the presence of several organisms within their mantle cavity, such as copepods, nematodes, ciliates and mudworms. A rnyicolid copepod and an alloeocoel turbellarian appear to be persistent and facultative invaders. A peculiar association is that of a chironornid insect larva whlch probably completes its developmental stages withn the oyster. f i stopathological examination reveals occasional swelling and disorganisation of the connective tissue and leucocyte infiltration around the oyster gut and the digestive diverticula, but these are considered to be histological anomahes, probably seasonal in character. The possible role of associated organisms in disease transmission and in contributing to stress is discussed.

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On the habits and nature of association of the copepod Pseudomyicola spinosus with the rock oyster Crassostrea glomerata in New Zealand

Cited by 17 publications

References 2 publications

Parasites of the Pleasure Oyster Crassostrea corteziensis Cultured in Nayarit, Mexico

Parasites of the Pleasure Oyster Crassostrea corteziensis Cultured in Nayarit, Mexico

Registro de Pseudomyicola spinosus em cultivos de Perna perna do Sul do Brasil

Potential disease-causing organisms associated with mantle cavity of Pacific oyster Crassostrea gigas in northern New Zealand

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